Improvement in steam feed-cookers



2 Sheets-Sheet 1 J. M. HILL. Steam Feed-Cooker. No. 205,863. PatentedJuly 9,1878.

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' ATTORNEYS- N PETERS, PHOTmuTmGRAPHER, wnsummou, D C.

2 Sheets-Sheet 2;.

J. M. HILL. Steam Feed-Cooker.

No. 205,863. Patented July 9,1878.

INVENTORI.

WlTNES SES ER, WASHlNGTON U C UNITED STATES PATENT OFFICE.

JAMES M. HILL, OF ANN ARBOR, MICHIGAN.

IMPROVEMENT IN STEAM FEED-COOKERS.

Specification forming part of Letters Patent No. 205,863, dflffll July 17 app at fi May 11, 1878.

To all whom it may concern Be it known that I, JAMES M. HILL, of AnnArbor, in the county of Washtenaw'and State of Michigan, have invented anew and valuable Improvement in Steam-Generators; and I do herebydeclare that the following is a full,

clear, and exact description of the construction and operation of thesame, reference being had to the annexed drawings, making a part of thisspecification, and to the letters and figures of reference markedthereon.

Figure 1 of the drawings is a representation of a transverse Verticalcentral section of my steam-generator. Fig. 2 is a plan view withwater-tank removed. Fig. 3 is a longitudinal vertical sectional view,and Fig. 4 is a front view, of the same.

The nature of my invention consists in the construction and arrangementof a stationary and portable steam feed-cooker, as will be hereinaftermore fully set forth.

The annexed drawing, to which reference is made, fully illustrates myinvention.

A represents the casin g of the steam feedcooker, in which is thehorizontal cylindrical fire-box B, extending the entire length of thecasin g, and provided at the top front with suitable doors, and at therear with an elbow smoke-pipe, (J. Within the fire-box B is a coiledpipe, D, which lies close around the firebox, and extends the entirelength thereof.

E represents an elevated water-tank, from which the water passesdownward through a pipe, a. This pipe extends below the fire-box, andthen turns upward at b and connects with the front end of the coil D. Inthe pipe I) is a check-valve, cl, so arranged that the pressure of coldwater from above will raise the valve and then pass into the coil, whilein case there is any back-action of steam said check-valve (I willclose.

The steam is generated in the coiled pipe D, the rear end of whichpasses through the elbow of the smoke-stack G. This makes a very goodand cheap arrangement for heating the water and generating steam.

The rear end of the coil pipe D connects with a cylinder, F, at theupper side, and a T- I joint, G, is screwed into said cylinder F, to

make connection both ways, one to convey the steam for cooking orheating purposes at any distance away, and the other to be connectedwith a pipe, I, that runs back under the crownsheet or perforated bottomIL The pipe I is connected with the center arm of the T-joint orelbow-coupling G by means of a short pipe, J, which screws into both, asshown. The upper side of the pipe I is perforated, and lies close to thetop of the furnace or fire-box B, the perforations allowing the steam toescape and pass up through the feed-box L on top.

Suitable stop-cocks are to be arranged, so as to admit the steam througheither pipe, to pass it off to a distance for cooking or other purpose,or to the pipe I for cooking on top of the furnace; or the steam maypass to both at one time.

A rod,h, runs into the globeF, and is within the same provided with afan or wing, i. The rod It has a crank, h, connected, by a rod, m, witha valve, 02, in the water-supply pipe 0. The steam presses squareagainst the fan i, and, as the steam-pressure increases, the fan isturned back, rotating or rocking the rod m, thereby opening the valve orstop-cock a to let on more water. A coil-spring, p, on the rod m, drawsthe same back when the steampressure decreases, to shut off the supplyof water.

The perforations in the bottom H are made preferably in diamond form, asshown.

The feed-box L is made flaring, and should be provided with a commonboard lid to cover the same.

I am aware that a coil-pipe for similar purposes is not, broadly, new,and that it is well known to perforate steampipes, and such features arenot, broadly, sought to be covered by this application.

What I claim as new, and desire to secure by Letters Patent, is

1. The coil-pipe D, arranged within the cylindrical fire-box B theentire length thereof, and communicating with the water-supply at oneend, and having steam-exit at the other end, as herein set forth.

pipe a, substantially as and for the purposes herein set forth.

In testimony that I claim the above I have hereunto subscribed my namein the presence of two witnesses.

JAMES M. IIILL.

\Vitnesses:

DENSMORE Qumran, J. L. (lRINNELL.

